Port 4878
inst-discovery · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | inst-discovery |
| Registered | 2011-02-15 |
Frequently asked questions
What is port 4878 used for?
Port 4878 is registered with the IANA for inst-discovery (TCP/UDP). Description: Reserved; Agilent Instrument Discovery.
Is port 4878 a well-known port?
No. Port 4878 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4878 is open?
Locally on Linux with ss -tulpn | grep ':4878\b', on Windows with netstat -ano | findstr :4878. To test a remote host use Test-NetConnection <host> -Port 4878 in PowerShell or nc -zv <host> 4878 on Linux/macOS.
How do I open port 4878 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4878/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4878/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4878" -Direction Inbound -Protocol TCP -LocalPort 4878 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | – | Reserved |
| UDP | inst-discovery | Agilent Instrument Discovery |